port it up or a wall

port it up or a wall
would it be louder if i port up or out the back sides.
i still don't know where to tune at.
i'm thinking around 40hz
90 CRX 4 kicker comp VR 10's popping 151.3 on TL
HiFonics BXI 2006 D on subs
BIG 3, NEW 300 amp ford alternator![]()
USAC MO state record stock 1801-3000 watt 149.7
Team WINCO local
team Organized Noize national
Team DC Sounds
refs...sold to ..Louisiana_CRX, Victory, SkronnyLonny
bought from..budahbuddy803, angrytrucker78,xxxpower,alphakenny1
bad@ss HO alternators
http://www.nationsautoelectric.com/highoutput.html
If you are taking up all the room in the back of the crx, you are making your boxes to big for spl. Generally on a kicker sub all you need is just over 1 cubic foot. Fire the woofers forward and aeroports directly out the back of the box (yes they will stickout) and then shorten the port to the desired freqency (likely to be around 55-60 hz). Anyway this box is like others have spoke of on here and it has proven itself many times. But its just for spl. I'm about to do my build on my crx and ill keep u posted with pics and tips.
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